Tool for inserting magnetic steel into embedded open iron core

Abstract

The utility model discloses a tool for inserting magnetic steel into an embedded open iron core, which comprises a base on which the iron core is coaxially positioned; the shaping mold comprises a shaping ring arranged on the periphery of the iron core in a sleeving mode and a plurality of protective teeth arranged on the inner side wall of the shaping ring, and the protective teeth are inserted into openings in the peripheral wall of the iron core corresponding to the protective teeth in an up-down sliding mode; according to the utility model, the shaping mold is used for shaping the iron core so as to protect the iron core, the iron core is not easy to deform when the magnetic steel is inserted into the magnetic steel groove, the shaping ring is used for supporting the iron core from the periphery of the iron core, and the protective teeth are used for supporting the opening of the iron core, so that the iron core is protected from multiple aspects, and the iron core is not easy to deform.

Description

TECHNICAL FIELD

[0001] The utility model belongs to motor technical field, concretely is a kind of tool for embedding open core insertion magnetic steel. BACKGROUND

[0002] Motor is a kind of device to realize electric energy conversion or transmission according to electromagnetic induction law, wherein, the most important is to generate driving torque as the power source of electric appliance or various machines;According to statistics, China motor consumes electric energy and the proportion has exceeded 70% of total power generation, with the increasingly prominent environmental problems, the popularization and use of high-efficiency electric drive have been adopted by various fields, and the improvement of motor efficiency can provide effective technical support for the smooth realization of energy-saving and emission-reducing target.

[0003] Permanent magnet synchronous motor is one of motors, and is widely used due to its low price and high efficiency.Currently, the rotor core of permanent magnet synchronous motor on the market has two structures, one is open embedded open core with the radial outer side of magnetic steel slot being open, and the other is open embedded closed core with the radial outer side of magnetic steel slot being fully closed.Among them, the motor with open rotor core has higher efficiency, and its maximum output can be 30% higher than that of the motor with closed rotor core, so it is more and more widely used.However, its structural strength is low, and the opening of the core is easy to deform when the magnetic steel is inserted into the magnetic steel slot of the core. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of tool for embedding open core insertion magnetic steel to solve at least one of the above technical problems.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0006] A tool for embedding open core insertion magnetic steel, comprising:

[0007] Base, the core is coaxially positioned on the base;The base is used for coaxial positioning of the core by being provided, which facilitates subsequent insertion of the magnetic steel into the magnetic steel slot of the core;

[0008] Shaping die, comprising a shaping ring sleeved on the outer periphery of the core and a plurality of tooth guards provided on the inner side wall of the shaping ring, a plurality of the tooth guards are slidably inserted into the openings on the outer periphery wall of the corresponding core;The shaping die is used for protecting the core, so that the core is not easy to deform when inserting the magnetic steel, wherein the shaping ring is sleeved on the outer periphery of the core, which can protect the core from the outer periphery of the core and provide support for the outer periphery of the core, the tooth guard extends into the opening to provide support for the core, so that the core is not easy to deform;

[0009] A guide plate is arranged above the iron core, the guide plate is fixed with the sizing ring through a screw, a plurality of guide grooves are arranged on the guide plate, and the plurality of guide grooves are located above the magnetic steel grooves of the corresponding iron core.

[0010] The utility model discloses a base is used for coaxial positioning iron core, and the sizing die is used for iron core sizing, and the iron core is protected, and the iron core is not easy to deform when the magnetic steel is inserted into the magnetic steel groove, wherein the sizing ring provides support for the iron core from the outer periphery of the iron core, and the tooth guard provides support for the opening of the iron core, so that the iron core is not easy to deform from multiple aspects, the guide groove on the guide plate guides the magnetic steel to be inserted into the magnetic steel groove, the magnetic steel is more easily inserted into the magnetic steel groove, and the risk of breaking the magnetic steel and damaging the iron core is reduced.

[0011] Further, a first positioning part is formed in the middle of the base and extends into the shaft hole of the iron core to position the iron core coaxially on the base, and the first positioning part is used for positioning between the base and the iron core, so that the iron core can be stably positioned coaxially on the base.

[0012] Further, a positioning ring is formed on the top of the sizing ring, and a second positioning part is formed on the bottom of the guide plate, the second positioning part is filled in the positioning ring, and the second positioning part is pressed against the top of the iron core, the positioning between the guide plate and the sizing ring is facilitated by the cooperation of the positioning ring and the second positioning part, and the second positioning part can also limit the top of the iron core from being raised when the second positioning part is pressed against the top of the iron core, further protecting the iron core and preventing the iron core from being deformed.

[0013] Further, the positioning ring and the sizing ring are coaxially arranged, facilitating the machining of the sizing ring and the positioning ring.

[0014] Further, the outer diameter of the positioning ring is consistent with the outer diameter of the sizing ring, facilitating the machining of the sizing ring and the positioning ring.

[0015] Further, the inner diameter of the positioning ring is larger than the inner diameter of the sizing ring, the bottom surface of the second positioning part abuts against the top surface of the sizing ring, the positioning ring can limit the second positioning part in the circumferential direction through cooperation with the second positioning part, thereby realizing the positioning between the guide plate and the sizing ring, and the bottom surface of the second positioning part can limit the position of the second positioning part in the axial direction of the sizing ring, thereby realizing the positioning between the sizing ring and the guide plate, and the sizing ring, the positioning ring, the second positioning part and the guide plate can be connected more closely through the limitation of the inner diameter of the positioning ring.

[0016] Further, the second positioning part bottom surface is equipped with a plurality of positioning columns, a plurality of the positioning columns correspond to the positioning hole opened on the iron core top surface one by one, through the positioning column arranged can cooperate with the positioning hole opened on the iron core, realize the positioning between the guide plate and the iron core.

[0017] Further, the base is opened with a lightening hole, through the lightening hole opened, the raw material needed for manufacturing the base can be saved, and the weight of the base can be reduced.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] The utility model discloses a base is used for coaxial positioning iron core, and the setting shaping die is used for iron core shaping, and the iron core is protected, and the iron core is not easy to deform when the magnetic steel is inserted into the magnetic steel slot, wherein the shaping ring provides support for the iron core from the iron core periphery, and the tooth guard provides support for the opening of the iron core, so that the iron core is protected from multiple aspects and is not easy to deform, the guide slot on the guide plate is set up and is used for guiding the magnetic steel to insert into the magnetic steel slot, so that the magnetic steel is more easily inserted into the magnetic steel slot, and the risk of breaking the magnetic steel and damaging the iron core is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic diagram for embedding open iron core and inserting magnetic steel for the embodiment;

[0021] Figure 2 It is a structure schematic diagram for the base and the iron core for the embodiment;

[0022] Figure 3 It is another structure schematic diagram for embedding open iron core and inserting magnetic steel for the embodiment;

[0023] Figure 4 It is a structure schematic diagram for the shaping die and the guide plate for the embodiment;

[0024] Figure 5 It is a sectional view for embedding open iron core and inserting magnetic steel for the embodiment;

[0025] In the drawing: 1, base, 2, iron core, 3, shaping die, 31, shaping ring, 32, tooth guard, 4, guide plate, 5, screw, 6, guide slot, 7, first positioning part, 8, positioning ring, 9, second positioning part, 10, positioning column, 11, lightening hole. DETAILED DESCRIPTION

[0026] The technical solutions of the utility model will be clearly and completely described below with reference to the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0027] As shown in Figures 1-5 The utility model provides a kind of tooling for embedding open iron core insertion magnetic steel, comprising:

[0028] Base 1, iron core 2 is coaxially positioned on base 1;By the coaxial positioning iron core 2 for being set in base 1, it is convenient for subsequent magnetic steel insertion magnetic steel slot in iron core 2, in the embodiment, base 1 is coaxially arranged with iron core 2, to facilitate the stability of structure is increased;

[0029] Shaping die 3, it includes the shaping ring 31 of being set to the outer periphery of iron core 2 and the plurality of tooth guards 32 of being set to the inner side wall of shaping ring 31, the plurality of tooth guards 32 are slidably inserted in the opening on the outer periphery wall of its corresponding iron core 2 upper and lower;By the setting shaping die 3 for protecting iron core 2, iron core 2 is not easy to deform when inserting magnetic steel, wherein, shaping ring 31 is set to the outer periphery of iron core 2, can protect iron core 2 from the outer periphery of iron core 2, provides support for the outer periphery of iron core 2, tooth guard 32 extends into the opening, provides support for iron core 2, so that iron core 2 is not easy to deform;In the embodiment, the shape of tooth guard 32 is consistent with the shape of the opening on the outer periphery wall of its corresponding iron core 2, shaping ring 31 can be from top to bottom set on iron core 2, in this process, tooth guard 32 is also inserted into the opening of iron core 2, tooth guard 32 fills its corresponding opening, can provide better support for the opening of iron core 2, avoid the deformation of the opening of iron core 2;In the embodiment, shaping ring 31 is coaxially arranged with iron core 2, the inner wall of shaping ring 31 is attached to the outer periphery wall of iron core 2, to provide support for the outer periphery wall of iron core 2;In the embodiment, tooth guard 32 is integrally formed with shaping ring 31;

[0030] A guide plate 4 is arranged above the iron core 2, the guide plate 4 is fixed with the sizing ring 31 through a screw 5, a plurality of guide grooves 6 are arranged on the guide plate 4, the plurality of guide grooves 6 correspond to the magnetic steel grooves of the iron core 2 one by one, and the plurality of guide grooves 6 are above the corresponding magnetic steel grooves of the iron core 2; the magnetic steel is inserted into the magnetic steel groove through the guide groove 6 arranged on the guide plate 4, so that the magnetic steel is smoothly inserted into the magnetic steel groove; in the embodiment, the guide plate 4 is coaxially arranged with the iron core 2; in the embodiment, the screw 5 is a cross countersunk screw 5, the number of the screw 5 is a plurality, and the screw 5 is uniformly distributed on the outer side of the guide plate 4 in a ring shape; in the embodiment, the one-to-one correspondence between the guide groove 6 and the magnetic steel groove is that the number, shape and position of the guide groove 6 correspond to the magnetic steel groove one by one, the size of the slot on the side close to the magnetic steel groove of the guide groove 6 is consistent with the size of the slot of the corresponding magnetic steel groove, and the size of the slot on the side away from the magnetic steel groove of the guide groove 6 is greater than the size of the slot of the corresponding magnetic steel groove, so as to guide the magnetic steel to be inserted into the magnetic steel groove.

[0031] The utility model discloses a base 1 is used for coaxial positioning iron core 2, setting sizing mould 3 is used for iron core 2 shaping, to protect iron core 2, make iron core 2 not easy deformation when magnetic steel inserts magnetic steel groove, wherein, through the support of sizing ring 31 from the outer periphery of iron core 2, the support of tooth guard 32 is provided for the opening of iron core 2, thereby protecting iron core 2 from multiple aspects, so that iron core 2 is not easy to deform, the guide groove arranged on the guide plate 4 guides the magnetic steel to be inserted into the magnetic steel groove, so that the magnetic steel is more easily inserted into the magnetic steel groove, and the risk of breaking the magnetic steel and damaging the iron core 2 is reduced.

[0032] In the prior art, the iron core 2 is generally provided with a shaft hole for mounting a motor shaft, in the embodiment, as shown in Figure 2 The middle part of the base 1 protrudes to form a first positioning part 7, the first positioning part 7 extends into the shaft hole of the iron core 2 to enable the iron core 2 to be coaxially positioned on the base 1, the first positioning part 7 is arranged between the base 1 and the iron core 2 to enable the iron core 2 to be stably coaxially positioned on the base 1; in the embodiment, the outer periphery shape of the first positioning part 7 is matched with the shape of the shaft hole of the iron core 2, when the iron core 2 is coaxially positioned on the base 1, the first positioning part 7 is inserted into the shaft hole of the iron core 2, which can limit the movement of the iron core 2 in the horizontal direction and also limit the rotation of the iron core 2 around the axis.

[0033] Further, as shown in Figure 5As shown, the top of the sizing ring 31 protrudes to form a positioning ring 8, the bottom of the guide plate 4 protrudes to form a second positioning part 9, the second positioning part 9 is filled in the positioning ring 8, and the second positioning part 9 is pressed against the top of the iron core 2. By arranging the positioning ring 8 and the second positioning part 9 to cooperate, the positioning between the guide plate 4 and the sizing ring 31 is facilitated, and when the second positioning part 9 is pressed against the top of the iron core 2, the top of the iron core 2 can also be limited from being buckled, thereby further protecting the iron core 2 and preventing the iron core 2 from being deformed; in the embodiment, the positioning ring 8 and the sizing ring 31 are integrally formed, the guide plate 4 and the second positioning part 9 are also integrally formed, and the inner wall of the positioning ring 8 is attached to the outer peripheral wall of the second positioning part 9; in the embodiment, the guide plate 4 and the second positioning part 9 can also be annular, thereby saving the material for manufacturing the guide plate 4 and the second positioning part 9; in the embodiment, the guide groove 6 is provided through the second positioning part 9.

[0034] Further, as shown in the figure, Figure 5 the positioning ring 8 is coaxially arranged with the sizing ring 31, thereby facilitating the machining of the sizing ring 31 and the positioning ring 8.

[0035] Further, as shown in the figure, Figure 5 the outer diameter of the positioning ring 8 is consistent with the outer diameter of the sizing ring 31, thereby facilitating the machining of the sizing ring 31 and the positioning ring 8.

[0036] Further, as shown in the figure, Figure 5 the inner diameter of the positioning ring 8 is greater than the inner diameter of the sizing ring 31, the bottom surface of the second positioning part 9 is in abutment with the top surface of the sizing ring 31, the positioning ring 8 can limit the second positioning part 9 from the circumferential direction through cooperation with the second positioning part 9, thereby achieving the positioning between the guide plate 4 and the sizing ring 31, and the bottom surface of the second positioning part 9 is pressed against the top surface of the sizing ring 31, which can limit the position of the second positioning part 9 from the axial direction of the sizing ring 31, thereby achieving the positioning between the sizing ring 31 and the guide plate 4, and through the limitation of the inner diameter of the positioning ring 8, the connection between the sizing ring 31, the positioning ring 8, the second positioning part 9 and the guide plate 4 can be more compact, wherein the screw 5 is screwed from the top surface of the guide plate 4, passes through the positioning ring 8, and reaches the inside of the sizing ring 31, thereby connecting the guide plate 4 with the positioning ring 8 and the sizing ring 31, and the screw 5 also makes the top surface of the sizing ring 31 tightly attached to the bottom surface of the second positioning part 9.

[0037] Further, as shown in the figure, Figure 4 the bottom surface of the second positioning part 9 is provided with a plurality of positioning columns 10, and the plurality of positioning columns 10 are one-to-one corresponding to the positioning holes opened on the top surface of the iron core 2, the positioning columns 10 arranged can cooperate with the positioning holes opened on the iron core 2, thereby achieving the positioning between the guide plate 4 and the iron core 2.

[0038] Further, as shown in the figure, Figure 3As shown, the base 1 is provided with a lightening hole 11, by providing the lightening hole 11, the raw material needed for manufacturing the base 1 can be saved, and the weight of the base 1 can be reduced, in the embodiment, the number of the lightening hole 11 is at least two, and all the lightening holes 11 are evenly distributed around the first positioning part 7.

[0039] It should be noted that although the utility model is disclosed as above with specific embodiments, the above embodiments are not used to limit the utility model, and ordinary skilled in the art can make various changes and decorations without departing from the spirit and scope of the utility model, therefore the protection scope of the utility model is defined by the claim.

Claims

1. A tool for embedding an open core magnetic steel, characterized in that, The application relates to a magnetic core positioning device. The device comprises a base, a magnetic core coaxially positioned on the base, a shaping mold, and a guide plate. The shaping mold comprises a shaping ring sleeved on the outer periphery of the magnetic core and a plurality of tooth guards arranged on the inner side wall of the shaping ring.

2. The tooling for inserting magnetic steel into an open iron core of claim 1, wherein, The tooth guards are slidably inserted into the openings on the outer periphery wall of the magnetic core.

3. The tooling for inserting a magnetic steel into an open iron core of claim 2, wherein, The guide plate is arranged above the magnetic core and is provided with a plurality of guide grooves above the magnetic steel grooves of the magnetic core.

4. The tooling for inserting a magnetic steel into an open iron core of claim 1, wherein, The guide plate is fixed to the shaping ring by screws.

5. The tooling for inserting a magnetic steel into an open iron core of claim 2, wherein, A first positioning part is formed in the middle of the base and extends into the shaft hole of the magnetic core to coaxially position the magnetic core on the base.

6. The tooling for inserting a magnetic steel into an open iron core of claim 5, wherein, A positioning ring is formed on the top of the shaping ring, and a second positioning part is formed on the bottom of the guide plate.

7. The tooling for inserting a magnetic steel into an open iron core of claim 5, wherein, The second positioning part is filled in the positioning ring and is pressed against the top of the magnetic core.

8. The tooling for inserting a magnetic steel into an open iron core of claim 5, wherein, The positioning ring is coaxially arranged with the shaping ring.

9. The tooling for inserting a magnetic steel into an open iron core of claim 5, wherein, The outer diameter of the positioning ring is consistent with the outer diameter of the shaping ring.

10. The tooling for inserting a magnetic steel into an open iron core of claim 1, wherein, The inner diameter of the positioning ring is larger than the inner diameter of the shaping ring. The bottom surface of the second positioning part is in abutment with the top surface of the shaping ring. The bottom surface of the second positioning part is provided with a plurality of positioning columns corresponding to the positioning holes on the top surface of the magnetic core. A weight-reducing hole is formed on the base.

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